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https://issues.apache.org/jira/browse/IMPALA-1856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Abhishek Rawat updated IMPALA-1856:
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Summary: MetadataOp.getTypeInfo() does not return all supported types
(was: Missing datatypes from JDBC DBMD.getTypeInfo() call)
> MetadataOp.getTypeInfo() does not return all supported types
> ------------------------------------------------------------
>
> Key: IMPALA-1856
> URL: https://issues.apache.org/jira/browse/IMPALA-1856
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Affects Versions: Impala 2.1
> Environment: Impala 2.1
> C5.3
> hive-jdbc 0.13
> Reporter: Jonathan Seidman
> Assignee: Abhishek Rawat
> Priority: Minor
> Labels: jdbc, odbc, ramp-up, supportability
>
> The MetadataOp.getTypeInfo() does not return all the supported types. It's
> missing all the complex types (ARRAY, MAP, and STRUCT) added in CDH5.5.
> Several of the primitive data types such as CHAR, VARCHAR, DECIMAL are also
> not being returned. Also, the newly added DATE type is not being returned.
> There is also a testing gap and ideally whenever a new type is added or
> support for a type is changed the MetadataOp.getTypeInfo() should return the
> correct result set representing the supported types.
> The Impala JDBC client should in theory call MetadataOp.getTypeInfo() but
> that is not happening in the latest version of the code. This Jira will only
> ensure that on Impala side the MetadataOp.getTypeInfo() returns correct
> results.
>
> *<Old Description>*
> Missing datatypes from JDBC DBMD.getTypeInfo() call:
> Filing this here since it seems to be an Impala defect as opposed to a driver
> defect based on observed behavior. The following is seen from
> DBMD.getTypeInfo() call against Hive:
> VOID
> BOOLEAN
> TINYINT
> SMALLINT
> INT
> BIGINT
> FLOAT
> DOUBLE
> STRING
> CHAR
> VARCHAR
> DATE
> TIMESTAMP
> BINARY
> DECIMAL
> ARRAY
> MAP
> STRUCT
> UNIONTYPE
> USER_DEFINED
> And against Impala (2.1):
> NULL_TYPE
> BOOLEAN
> TINYINT
> SMALLINT
> INT
> BIGINT
> FLOAT
> DOUBLE
> TIMESTAMP
> STRING
> BINARY
> Note the missing newer datatypes (e.g. decimal, varchar).
> This is with the Hive 0.13 driver. Please let me know if there's something
> I'm missing and this should be filed against the driver.
> *</Old Description>*
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